A liquid tank internal straight ladder elastic support leg structure

Abstract

This utility model provides a straight ladder elastic support leg structure inside a liquid tank, relating to the field of marine engineering. It includes: a straight ladder body, connector one, connector two, and connector three. The bottom sides of the straight ladder body are installed on one side of connector one. Angle steel is installed at equal intervals on both sides of the straight ladder body via connector two. Connecting plates are installed on both sides of the top of the straight ladder body. Top rods are installed on the surface of the connecting plates via connector three. This utility model, by changing the rigid connection of the straight ladder inside the liquid tank to an elastic connection with connectors one, two, and three as buffers, avoids stress concentration at the welded points between the straight ladder and the structure after installation, and also avoids ladder frame deformation. By attaching the hook on the safety rope to the safety frame, and then hooking the hook into the inner wall of the safety groove after reaching the desired position, the straight ladder is made safer during use.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, and in particular to a straight ladder elastic support leg structure inside a liquid tank. Background Technology

[0002] The internal ladders of the liquid tank provide a convenient passage for maintenance personnel to enter the tank for inspection, maintenance, and cleaning, allowing them to safely reach all parts of the tank. Previously designed internal ladder supports consisted of angle steel or flat steel welded at one end to the ladder frame and the other end to the tank's wall or floor plate. Due to the modular design of the tank structure, stress calculations later revealed that the ladder's kick plate, directly welded to the tank's wall or floor plate, could lead to stress concentration that couldn't be released. Furthermore, the rigidly connected ladders were prone to deformation during cargo loading and unloading in ship operations, and the ladder frame was easily damaged. Utility Model Content

[0003] The purpose of this invention is to provide a straight ladder elastic support leg structure inside a liquid tank to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a straight ladder elastic support leg structure inside a liquid tank, comprising: a straight ladder body, a first connector, a second connector, and a third connector. The bottom sides of the straight ladder body are installed on one side of the first connector. Angle steel is installed at equal intervals on both sides of the straight ladder body through the second connector. Connecting plates are installed on both sides of the top of the straight ladder body. A top rod is installed on the surface of the connecting plate through the third connector.

[0005] In a preferred embodiment, one end of the second connector is installed on the side of the straight ladder body, and the other end of the second connector is installed on the end where the angle steel is installed.

[0006] In a preferred embodiment, one end of the connector three is mounted on the side of the connecting plate, and the other end of the connector three is mounted on the bottom of the top rod.

[0007] In a preferred embodiment, the first connector, the second connector, and the third connector are Ω-shaped.

[0008] In a preferred embodiment, a mounting block 1 is installed at the bottom of the connector 1, and a mounting block 2 is installed at the other end of the mounting angle steel.

[0009] In a preferred embodiment, a safety frame is installed on the surface of the ladder body, and safety grooves are evenly spaced on the surface of the safety frame, with an embedding groove at the top of each safety groove.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model changes the rigid connection of the straight ladder inside the liquid tank to an elastic connection with connector one, connector two and connector three as buffers. This support form can avoid stress concentration at the welding position between the straight ladder and the structure after installation. Since it is an elastic connection, it can also avoid the problem of ladder frame deformation, making the device more perfect.

[0012] 2. This utility model involves hanging the hook on the safety rope onto the safety frame. After reaching the required position, the hook is installed into the inner wall of the safety groove through the embedding groove opened at the top of the safety groove, so that the hook hangs on the inner wall of the safety groove, making the ladder safer to use and the device more perfect. Attached Figure Description

[0013] Figure 1 A side view of a straight ladder elastic support leg structure inside a liquid tank provided by this utility model;

[0014] Figure 2 A side view of a connector for a straight ladder elastic support leg structure inside a liquid tank, provided by this utility model;

[0015] Figure 3 A side view of a safety frame with a straight ladder elastic support leg structure inside a liquid tank, provided by this utility model.

[0016] Legend:

[0017] 1. Straight ladder body; 2. Connector 1; 3. Connector 2; 4. Connecting plate; 5. Connector 3; 6. Installation angle steel; 7. Top rod; 8. Installation block 1; 9. Installation block 2; 10. Safety frame; 11. Safety groove; 12. Embedded groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3This utility model provides a technical solution: a straight ladder elastic support leg structure inside a liquid tank, including: a straight ladder body 1, a first connector 2, a second connector 3, and a third connector 5. The bottom sides of the straight ladder body 1 are installed on one side of one end of the first connector 2. Angle steels 6 are installed at equal intervals on both sides of the straight ladder body 1 through the second connector 3. Connecting plates 4 are installed on both sides of the top of the straight ladder body 1. Top rods 7 are installed on the surface of the connecting plates 4 through the third connector 5.

[0020] Specifically: When the device is in use, the connecting parts 1 and 2 are installed on both sides of the bottom of the straight ladder body 1. The two sides of the straight ladder body 1 are connected to one end of the installation angle steel 6 through the connecting parts 2 and 3. The connecting plates 4 installed on both sides of the straight ladder body 1 are installed on the top rod 7 through the connecting parts 3 and 5. This changes the rigid connection of the straight ladder body 1 inside the liquid tank to a connection using the connecting parts 1 and 2, connecting parts 2 and 3, and connecting parts 3 and 5 as buffers. The connecting parts 1 and 2, connecting parts 2 and 3 and connecting parts 3 and 5 avoid stress concentration at the welding position between the straight ladder and the structure after installation. This makes the straight ladder frame part of the liquid tank less prone to damage during cargo loading and unloading in ship operation, making the device more perfect.

[0021] In one embodiment, one end of connector 2 3 is installed on the side of the straight ladder body 1, the other end of connector 2 3 is installed on one end of the mounting angle steel 6, one end of connector 3 5 is installed on the side of the connecting plate 4, and the other end of connector 3 5 is installed at the bottom of the top rod 7. The shapes of connector 1 2, connector 2 3 and connector 3 5 are Ω-shaped.

[0022] Specifically: The Ω-shaped design of connectors 1 (2), 2 (3), and 3 (5) allows them to absorb forces during the use of the ladder, preventing deformation and addressing stress concentration at the installation location. Connector 2 (3) is installed at one end on the side of the ladder body 1, and at the other end on one end of the mounting angle steel 6. Connector 3 (5) is installed at one end on the side of the connecting plate 4 and at the other end on the bottom of the top rod 7, making the installation between the ladder and the mounting frame flexible, preventing ladder deformation, reducing damage, and improving the overall system.

[0023] In one embodiment, a mounting block 8 is installed at the bottom of connector 2, and a mounting block 9 is installed at the other end of the mounting angle steel 6.

[0024] Specifically: By using the mounting block 8 installed at the bottom of connector 2 and the mounting block 9 installed at the other end of the mounting angle steel 6, connector 2 and mounting angle steel 6 can be better installed inside the liquid tank, making the device more complete.

[0025] In one embodiment, a safety frame 10 is installed on the surface of the ladder body 1, and safety grooves 11 are equally spaced on the surface of the safety frame 10. An embedding groove 12 is provided on the top of the safety grooves 11.

[0026] Specifically: When using the main body of the escalator 1, the staff hangs the hook on the safety rope on the surface of the safety frame 10. At the same time, the safety frame 10 can also serve as a handrail for the staff when using the escalator. After the staff climbs to the required position, the hook on the installation rope is installed into the inside of the safety groove 11 through the embedded groove 12 opened at the top of the safety groove 11. This makes the staff safer when using the escalator, reduces the occurrence of accidents, and makes the device more perfect.

[0027] Working Principle: When the device is first used, the bottom of the ladder body 1 is installed on one end of two connectors 2, the connecting plate 4 is installed on both sides of the top of the ladder body 1, one end of connector 3 5 is installed on one side of the connecting plate 4 and the other end is installed on the top rod 7, and one end of connector 2 3 is installed on the side of the ladder body 1 and the other end is installed on the end of the angle steel 6. The Ω-shaped design of connectors 2, 3, and 5 absorbs the force during the use of the ladder, preventing deformation and solving the stress concentration problem at the installation location. By installing the ladder inside the liquid tank, the rigid connection is changed... The elastic connection using connector 1 (2), connector 2 (3), and connector 3 (5) as buffers avoids stress concentration at the welded points between the ladder and the structure after installation. The elastic connection also prevents ladder frame deformation, making the device more robust. When using the ladder body 1, workers hang the hooks on the safety ropes onto the surface of the safety frame 10. The safety frame 10 also serves as a handrail. After reaching the desired position, workers install the hooks on the installation ropes into the safety groove 11 through the embedded groove 12 at the top of the safety groove 11. This enhances safety when using the ladder, reduces the risk of accidents, and further improves the device's functionality.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A straight ladder elastic support leg structure inside a liquid tank, characterized in that, include: The ladder body (1), connector one (2), connector two (3) and connector three (5) are provided. The bottom sides of the ladder body (1) are installed on one side of connector one (2). Angle steel (6) is installed at equal intervals on both sides of the ladder body (1) through connector two (3). Connecting plates (4) are installed on both sides of the top of the ladder body (1). Top rods (7) are installed on the surface of the connecting plates (4) through connector three (5).

2. The straight ladder elastic support leg structure inside a liquid tank according to claim 1, characterized in that: One end of the second connector (3) is installed on the side of the straight ladder body (1), and the other end of the second connector (3) is installed on one end of the mounting angle steel (6).

3. The straight ladder elastic support leg structure inside a liquid tank according to claim 1, characterized in that: One end of the connector three (5) is installed on the side of the connecting plate (4), and the other end of the connector three (5) is installed on the bottom of the top rod (7).

4. The straight ladder elastic support leg structure inside a liquid tank according to claim 1, characterized in that: The shapes of connector one (2), connector two (3) and connector three (5) are Ω-shaped.

5. The straight ladder elastic support leg structure inside a liquid tank according to claim 1, characterized in that: The bottom of the connector (2) is fitted with a mounting block (8), and the other end of the mounting angle steel (6) is fitted with a mounting block (9).

6. The straight ladder elastic support leg structure inside a liquid tank according to claim 1, characterized in that: A safety frame (10) is installed on the surface of the straight ladder body (1). Safety grooves (11) are provided at equal intervals on the surface of the safety frame (10). An embedding groove (12) is provided on the top of the safety groove (11).

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